Lighting unit



Dec. 2, 1930. L Q PACKER 1,783,519

LIGHTING UNIT Filed April 11, 1929 I'NVENTOR Lewls C.P acKex- ATTORNEY Patented Dec. 2, 1930 Q g, UNITED STATES PATENT OFFICE m 0. PACKED, OI LONG MEADOW, MASSACHUSETTS, ABSIGNOB '10 WESTINGHOUSE Inmate & MANUFACTURING GOIPANY,

A CORPORATION OF PENNSYLVANIA meme um Application fled April 11,

order to ermit, the dropping of the sewingmachine ead within the cavity of the usual drop-head stand or the placing of the cover of a portable carrying case over the head. Another object .of my invention is to proto vide a lighting attachment which may be securely fastened within the machine, which will not vibrate while the machine is running and in which the wiring'is hidden from view and protected from mechanical injury.

8 Another object of my invention is to provide a lighting attachment such that the light will be directed upon the work and not strike the eyes of the user, either directly or by reflection from the surface of the work on 80 the table. This result is secured without casting objectionable shadows of machine parts on the work.

.Another object of my invention is to provide a lighting attachment which shall be mounted in such manner that it will be protected from the efiects of vibration of the sewing machine and which may readil be removed and replaced for inspection an re- P A still further object of my invention is to provide a lighting attachment which shall be simple in construction, inexpensive to manufacture and of maximum utility.

In practicing in invention, I provide a suitable horizonta y-extending recess within the lower portion of the head of a sewing machine to receive a lighting unit. An 0 ening between the recess and the outside 0 the head permits light from the lighting umt to be directed downward on the work. An-

ma serial 110. 354,281. 1

other opening on the side of the headlpermits' easy insertion and removal of the unit.

In the accompanying drawing,

Figure 1 is a side view of a sewing machine, mainly in elevation but partly in section, equipped with a lighting attachment in accordance with my invention.

Fig. 2 is an end view, partly in elevation and part1 in section, of the sewing machine head and ighting unit shown in Fig. 1, and Fig. 3 is an end view, partly in elevation and partly in section, showing another embodiment of my invention.

In the accompanyin drawings showing various embodiments o my invention, a sewing-machine head of usual construction is illustrated as mounted upon a base 1 which may be of either the portable or the drop head type;

The sewing-machine frame comprises a flat bed 2 upon which is supported a hollow bracket arm or goose-neck, including a standard 3 and a horizontal member 4, terminating in a sewing head 5 in which are slidably mounted the usual presser bar 6 and reci rocating needle bar 7 carrying, respective y, a presser foot 8 and needle 9. The needle 9 cooperates with the usual feed dog and loop taker (not shown) to form stitches.

The sewing-machine mechanism is driven by means of a hand wheel 12 or a pulley 13 ghting in the usual manner. Machines of this type i are usually driven by suitable motors which have been omitted from the illustration since they form no part of the present invention except as a motor may provide electrical energy for ener izing the lighting unit, and the connection gor the lighting unit may be so disposed as to take advantage of the location of the driving motor. The sewing machine may, of course, be driven by any suitable power means other than an electric motor, if so desired.

In the embodiment of my invention illustrated in Figs. 1' and 2, a laterally-extending recess 21 is provided within the head of the sewing machine by outwardly curvopening 24 is provided in the lower wall of the head to communicate w1th the recess 21 so that, when a lighting un1t 1s placed within the recess, the hght may be directed downwardly upon the work. Another opening 25 is provided in the side wall of the head in order that a lighting unit may be placed within the recess, and the opening may be closed by means of a cap 23 secured to the head by any suitable fastener or the cap may be in screw-threaded engagement with the head (Fig. 2).

In the embodiment of my invention shown in Figs. 1 and 2, the recess is preferably cylindrical in cross-section, and the li hting unit, including a socket 26 for 1101 ing a lamp 27 and shade 28, may be inserted in the recess through the opening 25. Suitable shoulders 31 and 32 are provided within the sewing machine head as parts of the side walls thereof to respectively engage the socket 26 and the shade 28. The lighting unit is so mounted in the recess 21 that it may be rotated or withdrawn from the opening but will be firmly engaged and held in position and will not change its position while the sewing machine is running. The cap 23 is provided with an opening 30 through which extend electrical conductors 34 for furnishing electrical energy to the lighting unit. The conductors 34 may extend into and through the inside of the head and through the goose-neck and the base 1 where they may be connected to the supply circuit.

In the embodiment of my invention shown in Fig. 3, the recess 41, preferably cylindrical in shape, and communicating opening 42 for permitting light to be directed upon the work are substantially the same as the corresponding features shown in Figs. 1v and 2. However, the lighting unit, including socket 26, 1amp'27 and shade 28 and the conductors 44 are disposed entirely within the goose-necks 3 and 4 .and head 5. This result is secured by providing an annular projection 46 within the interior of the head. The projection 46 is adapted to receive the lamp socket 26. As the lighting unit is shorter than the greatest dimension of the cylinder and is supported by shoulders 32 and the projection 46, suflicient space is available for conductors 44 between the end of the socket and cap 48. In this construction, the lighting conductors are not exposed at any point above the base.

In the various embodiments of my invention, the energy for the lamp may be turned on and off by means of a switch button 49 which may project through the side or the bottom of the head and may be unscrewed from the socket for the removal of the lighting unit or a slot may be provided in the wall of the head so that it will not be necessary to remove the switch button 49 to insert and remove the hghtmg unit.

My l1ght1ngdev1ce1s disposed almost entirely within the sewing machine standard and does not interfere with the operation of the sewing machine or manipulation of the work. The light is directed downwardly upon the work at the point where it is most needed and the source of light is shielded from the operator.

Although I have described certain modifications of my invention, it is to be understood that changes may be made by those skilled in the art without departing from the spirit and scope thereof as set forth in the appended claims.

I claim as my invention:

1. The combination with a sewing-machine goose neck including a horizontal arm and a sewing head disposed to provide a laterally extending recess at its lower portion and the lower Wall of the head being further disposed to provide an opening communicating between the recess and the outside of the head, and a lighting unit disposed within the recess and a removable cap at one end of the recess in the wall of the head to permit insertion of the lighting unit.

2. The combination with a sewing-machine goose neck including a horizontal arm and a sewing head disposed to provide :1 laterally extending recess at its lower ortion and the lower wall of the head being urther disposed to provide an opening communicating between the recess and the outside of the head, a plurality of shoulders on the inner walls of the head and a lighting unit including a lamp socket, a lamp and a reflector, the reflector and socket being adapted to be engaged by the said shoulders.

In testimony whereof, I have hereunto subscribed my name this 3rd day of April,

LEWIS C. PACKER. 

